| Happy Days | |
|---|---|
| Season 4 | |
 Al Molinaro, Henry Winkler, and Tom Bosley in the episode, "Fonzie's Baptism" | |
| No. of episodes | 25 |
| Release | |
| Original network | ABC |
| Original release | September 21, 1976 – March 29, 1977 |
| Season chronology | |
This is a list of episodes from the fourth season of Happy Days.